.topbar {
    position: relative;
    width: 100%;
    height: 100%;
    margin: auto;
    text-align: center;
}

.topbar img {
    height: 80%;
}

.topbar .left {
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
}

.topbar .mid {
    position: absolute;
    left: 0;
    right: 0;
    top: 0;
    bottom: 0;
    margin: auto;
}

.topbar .right {
    position: absolute;
    right: 0;
    top: 0;
    bottom: 0;
}
